Catherine Crump (@CatherineNCrump) clerked for the Hon. M. Margaret McKeown, a judge on U.S. Court of Appeals for the 9th Circuit, prior to joining the ACLU. Crump graduated from Stanford University and Stanford Law School. She is a non-residential fellow with the Stanford Center for Internet and Society.

In two different cases this week, the ACLU will be in court arguing that the government has unconstitutionally censored the Internet. Ever since the Supreme Court issued a fractured opinion on Internet filtering in 2003, when nine justices wrote…

Today the Supreme Court announced it will consider whether the government may plant GPS devices on vehicles to track people without judicial supervision. In the case, United States v. Jones, the FBI and Washington, D.C., police attached a GPS…

Technology moves so fast today that surveillance programs can now become routine before the public even learns of them. That is a problem because new surveillance programs can involve difficult value judgments and tradeoffs. How valuable are those…

On Friday, the ACLU of Delaware filed a brief with the Delaware Supreme Court arguing that law enforcement agents should not be permitted to attach a GPS device to a car without getting a search warrant. The brief explains that because GPS tracking…

“Can you guys give us a list of every friend you’ve ever had? In alphabetical order, please.” This question, posed by a pair of geeky guys to two blondes, is part of a great satire of Facebook put together by the Australian…

Last week the Justice Department squandered an opportunity to reassure Americans that as technology advances our civil liberties will not be left behind. The Justice Department was called before Congress to say whether it should be permitted to…